Airgun



C. C. LOOMIS Nov.. 10, 1931.

AIRGUN Filed Jan. 17. 1928 attoznmtu' gwuanto rd GLOOM NIW;

Patented- Nov. l0, 1931 PATENT OFFICE CRAWFORD C. LOOMIS, F ILION', NEWYORK, ASSIGNOR T0 REMINGTON ARMS COM- PANY, INC., A (XJRYORATION OFDELA'WARE I .AIBGUN applicati med January i7, 192e. semi No. 241,333.

This invention relates to spring operated air guns, and among otherimprovements contemplates a gun capable of shooting different kin s ofprojectiles.

' 5 One object of the invention is to provide a simple and improveddevice for detachably securing the stock or stock assemblyto the barrelor barrel assembly.

A further object of the invention is to Il provide a gun of this typewith a plurality lof barrels adapted to be used interchangeably andto'so arrange the barrel receiving parts that any selected barrel may beeasily and guickly attached thereto.

A u-rther object of the invention is to pro vide a magazine adapted toreceive and deliver to firing position any one of a number of differentkinds of projectiles.

A further object of the invention is to provide devices by whichprojectiles of different kinds may be fed into position to be fired inany redetermined se uence.

A urther object of t e invention isvto provide an air gun with amagazine receiving opening, and to provide a. magazine removably securedin such openin With these and other ob3ects in view the inventionlconsists in the novel combinations and arrangements of parts, arepresentative embodiment of which is shown in the drawings and will behereinafter described. The drawings illustrate the present inventions asapplied to a spring operated air gun of the ty shown and described in myprior copen ing application Serial No. 224,888, filed OctoberS, 1927,but it will be understood that in many respects they are yof'generalapplicability, and not limited to guns of this particular type. .f

In the drawings:

Fig. 1 is a longitudinal section thru a gun of the type described in myprior application above identified` having one embodiment of the presentinvention applied thereto.

Fig. 2 is a'fragmentary plan view of the barrel of a gun having one formof the invention applied thereto. v

Fig. 3 is -a fragmentary enlarged longitudinal section showing theconstruction of barrel and magazine.

Fig. 4 is a fragmentary sectional elevation thru the receiver. f

Flg. 5 is a transverse section substantially on the line 5-5 of Fig. 2.

Fig. 6 is a section 1n plan, showing how different forms of barrels maybe used interchangeably.

Fig. 7 is a fragmentary vertical section showing another form of barrel.

Fig. 8 is a transverse section, substantially on line 8-8 of Fig. 4.

The gun comprises a stock and receiver assembly, a barrel assembly and/apower applying assembly. The stock assembly includesl power mechanismcomprising a power spring 18 whichencircles the plunger 19 and iscompressed between the-,langed end of a fixed reinforclng sleeve 20 anda piston head 21 se' cured to plunger 19. A driving or piston tube 22extends :forwardly from the'piston and enters an aperture in a fixedplug 0r bushing 23to be hereinafter more fully described.

The bushing 23 andthe piston 21 are faced with leather or other materialadapted to make an air tight joint with the wall of the tube 16, andthus together define an air chamber which thru the aperture'24-in thepiston Y' tube 22 communicates with the rear end ofl -v barrel 17.

Thepower applying unit 'is-'chiefly housed -901 i in a. tubular member25, secured below the barrel assembly tube .16 by any. suitable means,such: as v.the arms 26 and 27 depending from the tube 16. Poweris-applied to cock the spring 18 by manipulation of the sliding forearmor handle 28, which encircles the tube and is provided at the top withapertures 29 forming a rack engaged by a gear' c 30 which rotates aboutthe floating pivot 31.

.Gear 30, which also engages rack teeth formed by the row of apertures32 in the bottom' of tube 25 has rigidly connected thereto a double gear33 which is in engagement with a double rack bar 34 having near its rearend an upwardly projecting head which engages the plunger 19. Uponmovement of the forearm 28 a lesser movement is thus transmitted toplunger 19, the ratio of reduction of movement depending upon the ratiosof the diameters of gears and 33.

A sear 36 pivoted in the barrel tube at 37 is adapted to engage a.suitable notch in the head 191 of plunger 19 and to be withdrawntherefrom upon the firing movement of trigger 13 by the movement of alocking lever 66, interposed between the trigger and sear. Lever 38 ispivoted at 39 and its forward end is moved by the firing movement of thetrigger into the path of movement of the end 341 of the rack bar 34.Thus the trigger is locked when the forearm 2S and rack 34 aredisplaced, and the rack and forearm are locked when the trigger isdepressed.

The mechanism thus far described is substantially similar to that shownin my prior application above identified. The present inventioncontemplates certain variations and refinements on the constructionpreviously disclosed, one of which comprises improved means for takingthe gun down for storage, shipment, or convenience in carrying. To thisend means are provided for quickly and easily removing the barrel andpower applying assemblies from the stock and receiver assembly as aunit. Barrel assembly tube 16 and power applying tube 25, which arerigidly secured together, enter and in part lie closely adjacent to thewall of the receiver 11 (see Fig. 8). To detachably secure the barreland power assembly in the receiver, a locking hook 40 is pivoted in thebarrel tube at 41. The end of hook 40 is pressed upwardly' thru anaperture in the top of the barrel tube by a spring 411. When the barreltube is in place in the receiver the hook receiving aperture is inalignment with a similar aperture in the top of the receiver, and thehook 40 projects into this aperture, firmly holding the assembled guntogether. To take the gun down the hook 40 is pressed back into thebarrel tube, and the barrel assembly moved longitudinally out of thereceiver.

The present invention further contemplates the provision of a loadcontaining magazine capable of receiving and holding in firing positionany one of a number of different kinds of projectiles, such as darts,slugs or charges of small shot. To this end the shooting barrel andassociated parts are constructed as follows:

The bushing 23 is secured in or to the end of a reenforcing tube 44which fits closely within the tube 16, and has rigid or integraltherewith the power unit supporting projection 27, previously mentioned.Bushing 23 is interiorly threaded to receive a threaded nipple 45 whichprojects from the end of an enlarged head or chamber piece 46 secured tothe barrel 1.7. An :.pertured barrel tube closing cap 47 secured to theforward end of the barrel 17, comprises a flange 48 adapted forperipheral engagement with the housing tube 16, and a slightlyprojecting knurled edge to facilitate manipulation. The barrel may beremoved by turning the knurled cap 47 to unscrew nipple 45 from bushing:23.

The chamber piece 46, which is circular in cross section andsubstantially fills a section of tube 44 (see Fig. 5) is slottedtransversely,

ythe ends of the slot aligning with apertures thru the walls of tubes 44and 16. A transverse slot thru the barrel assembly is thus provided,said slot being adapted to receive a magazine blocl; 50 which comprisesa series of chambers 51 each adapted to receive a load to be tired. Theloads may take a variety of forms, and any desired load may be placed inany chamber. A shot charge 52, a felt base slug and a dart 54 have beenshown in adjacent chambers, but obviously the same or diil'erent loadscan be used in any desired rotation. By moving the magazine plug thruits slot in the barrel assembly the successive chambers are in turnbrought into alignment with the piston rod 22 and barrel 17, permittingthe loads therein to be fired. To

accurately align the chambers with the barrel,

the rear end of each chamber is chamfered outwardly, and the chamfer 55receives the conical end of a sleeve 56, contained in a recess in thenipple 45, and pressed forward by a spring 57 interposed between ashoulder in the sleeve and a washer 58 fixed in the end of the nipplerecess. The slot is counter bored slightly to receive the conical end ofsleeve 56 when the magazine block is removed (Fig. 1) and the corner ofthe block is beveled at 59 to facilitate depressing the sleeve when themagazine block is inserted. As shown in Fig. 1, when the gun is cockedthe piston rod 22 passes thru the sleeve 56 and its coil spring 57 andterminates adjacent the side of the' slot.

It will be apparent that. the method of securing the barrel abovedescribed lends itself` readily to the rovision of interchangeablebarrels. The arrel rovided with the magazine receiving cham r piece 46may lll be readily removed by screwing it out of the proper. The slr-otare delivered to the barrel one at a time thru aperture 63.

Fig. 7 illustrates another type of barrel provided with a tubularmagazine 65 containweaves ing a spring pressed follower 66, and alsoprovided witha nipple 67 adapted to be received by bushing 23. These andother types of barrels thus readily replace the barrel pro vided withthe magazine block receiving chamber piece. The invention is, moreover,susceptible of many variations and other embodiments, all falling Withinthe scope of the appended claims.

What is claimed is:

1. In an air gun a barrel assembly, a stock and receiver assembly, andmeans for detachably securing said barrel assembly and said stockreceiver assembly together comprising a member pivoted within andadapted to be projected outwardly through the wall of said barrelassembly, and means on said receiver adapted to receive said member whenso projected.

2. In a take down air gun, means adapted to hold the parts of the gun inassembled relation by passinor thru apertures in juxtaposed parts,. and,to release the gun to be taken down when manually depressed out of oneof said apertures.

3. In a take down air gun, means for hold- Y ing the gun assembledcomprising a spring pressed member adapted to release the gun for takingdown when manually depressed against the tension' of its spring.

c 4. In an air gun, a barrel, a magazine block comprising a plurality ofprojectile receiving chambers and ada. ted to be moved transversely ofsaid barre to align said chamn bers successively with said barrel, aprojectile propelling piston rod aligned with said barrel and adapted toenter the chamber in alignment therewith, and means for. yieldinglyretaining said magazine with one of the chambers in alignment with saidpiston rod and said barrel` 5, In an air gun, a projectile propellingpiston rod, a. magazine comprising a plurality of projectile chambersadapted to be entered by said piston rod, means for yieldingly retaining said magazine with one of its cham bers in alignment with saidpiston rod comprising a spring and spring follower adapted to encirclesaid piston rod.

6. In an air gun, a barrel comprising an enlarged chamber piece having atransverse slot therethru adapted to receive a magazine block, saidchamber piece being provided with means for securing the barrel in thegun.

7. In an air gun, a barrel, a magazine housing, a barrel housing tubesurrounding said barrel and spaced therefrom, means secured to saidhousing tube adapted to retain the barrel in place, cooperating meansincluding said magazine housing secured to the rear end of said barrel,and means associated with the forward end of the barrel adapted to holdthe barrel in spaced relation to the tube and to close the -end openingbetween the barrel and tube.

` 8. A magazine blocirior airguns 'compris-U ing a plurality et'separate cylindrical chambers having chamtered ends and a beveled.corner for facilitating insertion in the gun.

9. An air gun comprising a barrel housing tube, a barrel in said tubeprovided with a cylindrical chamber piece, a transverse magazinereceiving slot in said chamber piece, and apertures in said tubealigned' with said slot.

10. In an air gun, a barrel housing, a barrel having secured theretochamber piece having formed therein a transverse slot, a magazine blockadapted to pass thru said slot, means associated with said chamber piecefor securing the barrel in piace in the arrel housing, and spring meansassociated with said chamber piece for yieidinglg, taining said magazineblock in place in said slot.

11. In an air gun, a false barrel, a true barrel, a chamber piececarried by said true barrel aligning the true barrel in the false barrel, said chamber piece being slotted to re ceive a magazine block.

12. In an air gun, a barrei assexnhy, a

stock and receiver assembly, and means for detachably securing saidbarrel assembly and said stock and receiver assembly together includinga spring-pressed member move-bie within and adapted to be projectedoutwardly through the wall oi said barrel., and means on said receiveradapted to receive said member when so projected.

13. In an air gun, a housing, a barrei having secured thereto a slottedchamber piece, a magazine block movable in the slot in said piece, andmeans associated with said piece for detachably securing the barrel tosaid housing.

14. In combination with an air gun, a housing, a barrel having securedthereto a slotted chamber piece, a magazine normally movable in the slotin said piece, means associated with said piece for detachably securingthe barrel to said housing, a second barrel having a chamberpiecesecured thereto, a magazine normally fiXedly associated with saidpiece, and means associated with said piece for detachably securing thebarrel to saidhousing', said barrels being adapted for interchangeableattachment to said housing.

15. In combination with an air gun, a bai rel having associatedtherewith a magazine normally movable relative thereto, a second barrelhaving associated therewith a magazine normally immovable relativethereto, said barrels being adapted for interchange able mounting insaid gun.

16. In combination with an air gun, a. barrel having associatedtherewith a magazine having accommodations for a plurality ofprojectiles of miscellaneous shapes, means Jfor selectively feeding saidprojectiles to the barrel, a second barrel having associated mittherewith a-magazine for spherical shot, said barrels being adapted forinterchangeable mounting in said gun.

17. In an air gun comprising a barrel and a firing device in alignmenttherewith, a transverse slot through said barrel, a magazine blockadapted to be received in said slot, movable therein, and comprising aplurality of projectile receiving chambers adapted -for selectivealignment with said firing device, the construction being such that saidmagazine block may be moved transversely in either direction to thusalign any desired chamber with said firing device at any time prior tothe firing movement thereof.

CRAWVFDRD C. LOOMIS.

